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    COATING WITH CATALYTIC ACTION ON CERAMIC MOLDING SURFACE FOR SYNTHESIS OF HYDROGEN CYANIDE
    11.
    发明专利
    COATING WITH CATALYTIC ACTION ON CERAMIC MOLDING SURFACE FOR SYNTHESIS OF HYDROGEN CYANIDE 失效

    公开(公告)号：JPH1052645A

    公开(公告)日：1998-02-24

    申请号：JP10853297

    申请日：1997-04-25

    Applicant: DEGUSSA

    Inventor： HIPPEL LUKAS VON DR ,  BUSSEK CHRISTIAN DR ,  SAUER JOERG DR ,  SAUER MANFRED DR ,  ARNTZ DIETRICH DR

    IPC: B01J23/40 ,  B01J23/42 ,  B01J27/24 ,  B01J37/02 ,  C01C3/02

    Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing a coating with catalytic action for synthesis of hydrogen cyanide on a molding. SOLUTION: In a method for manufacturing a coating with catalytic action, a molding is uniformly moistened with a coating dispersion liquid containing at least, one type of particulate platinum group element and any other coating component in a carrier liquid. In addition, the carrier liquid is evaporated and the coating is gradually heated at 1000-1350 deg.C in the presence of nitrogen and/or ammonium, so that the coating is shifted to a catalytic action effective state. In this case, a particulate nitride which has an average particle diameter considerably less than 100μm and contains elements such as aluminum, boron, titanium and silicon is used alone or in mixture form as another cationic coating component.

    PROCESO PARA LA EPOXIDACION DE OLEFINAS
    15.
    发明专利
    PROCESO PARA LA EPOXIDACION DE OLEFINAS 未知

    公开(公告)号：AR032928A1

    公开(公告)日：2003-12-03

    申请号：ARP020100746

    申请日：2002-03-01

    Applicant: DEGUSSA ,  KRUPP UHDE GMBH

    Inventor： HAAS THOMAS DR ,  HOFEN WILLI ,  SAUER JOERG DR ,  THIELE THOMAS DR

    IPC: C07D301/12 ,  C07D303/04

    Abstract: Un proceso para la epoxidacion catalítica de olefinas con peroxido de hidrogeno en un sistema de reaccion de flujo continuo, donde la mezcla de reaccion se hace pasar a través de un lecho fijo de catalizador en el interior de un reactor equipado con dispositivos de enfriamiento mientras se mantiene un perfil térmico dentro del reactor de modo tal que la temperatura del medio de enfriamiento del dispositivo de enfriamiento sea de al menos 40 degree C y la temperatura máxima dentro del lecho de catalizador sea de 60 degree C como máximo.

    19.
    发明专利
    未知

    公开(公告)号：DE19654515C1

    公开(公告)日：1998-10-01

    申请号：DE19654515

    申请日：1996-12-27

    Applicant: DEGUSSA

    Inventor： HOFEN WILLI ,  BOECK WOLFGANG DR ,  RAUTENBERG STEPHAN DR ,  SAUER JOERG DR ,  ARNTZ DIETRICH DR ,  GOEDECKE RALF DR ,  TAUGNER WOLFGANG ,  SONNENSCHEIN RAYMUND DR

    IPC: B01J21/04 ,  B01J23/30 ,  C07B61/00 ,  C07C319/08 ,  C07C321/04

    Abstract: A process for the continuous production of methyl-mercaptan (I) comprises (i) reacting a mixture of methanol and hydrogen sulphide (H2S) in the vapour phase at 300-500 degrees C and 5-15 bar on an alumina-based catalyst bed and (ii) separating (I) from the gas mixture obtained by absorption and distillation, with recycling of unreacted methanol and H2S, removal of inert gas and waste water, and replacement of used methanol and H2S. The starting gas mixture is obtained by (a) compressing fresh H2S to an intermediate pressure (P1) with addition of liquid methanol, (b) adding the recycled H2S and compressing the mixture to operating pressure (P2), (c) adding more methanol in the form of vapour to give a compressed mixture with a mol ratio of (H2S):(methanol) = 1.1-3, (d) preheating the gas mixture to 150-200 degrees C, (e) heating to reaction temperature using the heat of reaction released on the catalyst and (f) reaction on the catalyst bed.

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